Airtac GAC F.R.L. Unit GAC500C20AS
The AirTAC Airtac GAC F.R.L. Unit GAC500C20AS is a genuine three-unit F.R.L. combination — a filter, a pressure regulator and a lubricator pre-assembled on one bracket with quick mounting clamps. It has 3/4" ports, a 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight2460 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAC F.R.L. Unit GAC500C20AS
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this GAC500 unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing it in a heavy-duty size class that requires a solid frame mount rather than tubing support. The metal bowl equips this assembly for rugged industrial environments, while the 40 um element captures solid particulates before they reach downstream valves.
Air passes through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Operating at 0.15-0.9 MPa (20-130 psi), the standard type suits general plant air. The automatic drain clears condensate from the 108 cc bowl without an operator, reducing maintenance interventions on wet lines.
This combination arrives pre-plumbed with quick mounting clamps, eliminating inter-unit tubing leaks and slashing commissioning time. A circular gauge is fitted, reading MPa/psi for the default PT thread, so operators can verify the set pressure at a glance. If a line must stay strictly oil-free, omit the lubricator and choose a separate filter-regulator instead.
Airtac GAC F.R.L. Unit GAC500C20AS Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20AS |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| Drain type | Automatic drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 108 cc |
| Capacity of oil bowl | 225 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 2460 g |
Specifications follow the official AirTAC GAC catalogue (pages 216-217). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC500C20AS
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| A | Drain: Automatic drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
Constituent units, orderable separately as spares: GAF500-20 filter, GAR500-20 regulator, GAL500-20 lubricator — all three share this body and port.
Size Class & Flow Envelope
- GAC2001/8"-1/4" · 1750 L/min
- GAC3001/4"-1/2" · 3000 L/min
- GAC4003/8"-1/2" · 6000 L/min
- GAC5003/4" · 7000 L/min
- GAC6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAC500 · 3/4" · curve to 7000 L/min |
|---|---|
| One size down | GAC400 |
| One size up | GAC600 (curve to 12000 L/min) |
| Build order | Filter → bracket → regulator → lubricator |
Where the Airtac GAC F.R.L. Unit GAC500C20AS Is Used
Automotive Assembly Lines
Feeds large bore cylinders and multi-station headers on a production line where a steady 0.9 MPa supply and continuous lubrication are critical for robotic welding actuators.
Palletizing Equipment
Conditions air for heavy-duty bag palletizers, using the 108 cc drain bowl to capture moisture from high-volume compressed air demands during extended shifts.
CNC Machine Tooling
Supplies clean, regulated air at 3/4in to CNC machining centers, protecting pneumatic chucks and tool changers from particulate ingress while maintaining consistent clamping force.
Is the Airtac GAC F.R.L. Unit GAC500C20AS the Right Air-Prep Unit?
Choose this 3/4in model for substantial air flows, noting the catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, compared to the GAC600 which extends to 12000 L/min. The metal bowl offers durability where impact or harsh surroundings are a concern, and the automatic drain is decisive for unattended stations. The 40 um element is standard, but a 5 um option exists for precision instrumentation. Remember that oil mist is added downstream, so select a filter-regulator if the application requires dry, oil-free air. Replacement parts are available as GAF500-20, GAR500-20 and GAL500-20. The 1.5 MPa (215 psi) proof pressure against a 1.0 MPa (145 psi) maximum provides a 1.5x burst-test margin, not permission to run above 1.0 MPa.
Quick checklist
- ✓ Body size for your peak flow (3/4" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 2460 g unit on its bracket, not on the tubing.
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a filter-regulator instead of an F.R.L. combination on that branch.
Airtac GAC F.R.L. Unit GAC500C20AS FAQ
This model operates at 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It features a 3/4in port, a 40 um element, a 108 cc drain bowl, a 225 cc oil bowl, and weighs 2460 g. The temperature range is -5 to 70 C, and the recommended lubricant is ISO VG 32.
The automatic drain expels condensate from the 108 cc bowl without manual intervention, ideal for wet lines or remote installations. The metal bowl provides a robust housing suited to heavy industrial settings, sharing the same 1.0 MPa pressure rating as other bowl materials.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
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